JP7429152B2 - Sealing material for automobile doors - Google Patents

Description

The present invention relates to a sealing material for an automobile door that seals between a door attached to the side of an automobile and a vehicle body, for example.

2. Description of the Related Art Conventionally, a door attached to the side of an automobile has been provided with an automobile door sealing material for sealing between the door and a vehicle body panel (for example, see Patent Documents 1 and 2). The sealing material of Patent Document 1 is provided on the periphery of the door, and has a pillar side portion that extends in the vertical direction along the periphery of the door, and a roof side portion that extends in the longitudinal direction of the vehicle along the upper side of the wind frame. It has a part. The pillar side part is composed of a pillar side base that is attached to the door and a pillar side seal wall that is integrally molded to the pillar side base. It consists of a roof side seal wall that is integrally molded on the side base.

In Patent Document 1, the deformation of the sealing material that occurs when the door is closed differs between the pillar side portion and the roof side portion. In other words, as described in FIGS. 1 and 5 of Patent Document 1, at the upper end corner of the front side (hinge side) of the rear door, the pillar side portion of the sealing material is exposed to the pillars of the vehicle body in the longitudinal direction of the vehicle when the door is closed. When the door is closed, the pillar-side seal wall is deformed so as to bend in the front-rear direction, while the roof-side seal wall is pressed outward and outward from the vehicle interior by the vehicle roof when the door is closed, so the roof-side seal wall bends into the interior of the vehicle. It deforms so that it collapses outward.

In Patent Document 2, a seal lip is provided on each of the pillar side portion and the roof side portion. The seal lip on the pillar side is a part that obtains sealing properties by coming into elastic contact with the pillar of the vehicle body when the door is closed, and the seal lip on the roof side is the part that obtains sealing properties by making elastic contact with the pillar of the vehicle body when the door is closed. This is a part that obtains sealing properties by coming into elastic contact with the roof. Furthermore, in Patent Document 2, the seal lip on the pillar side portion and the seal lip on the roof side portion are arranged apart from each other in the direction of the interior and exterior of the vehicle interior, so a waterway is formed between these seal lips. A waterway blocking wall for blocking this waterway is formed from the seal lip on the pillar side portion to the seal lip on the roof side portion.

Furthermore, in Patent Document 3, as shown in FIG. 8, water that has entered the contact area between the vehicle body opening edge and the hollow seal part in the roof part drips downward when the door is opened, which is a so-called raindrop problem. The phenomenon that occurs is described. By using the same extrusion die to gradually change the protruding shape in the section from the roof through the corner to the quarter pillar, we are able to prevent raindrops while reducing manufacturing costs and improving the appearance. A similar configuration is described in Patent Document 3.

JP2005-280410A Japanese Patent Application Publication No. 9-240278 Japanese Patent Application Publication No. 10-076847

By the way, even in the upper end corner part of the rear side (lock side) of the front door, as in the sealing material of Patent Document 1, the direction in which the sealing material is deformed when the door is closed is the same as that of the pillar side part and the roof side part. Similar but different phenomena can occur. In this corner part, both the pillar side part and the roof side part often adopt an automobile body/door structure in which the seal wall flexes and deforms in the direction of the interior and exterior of the vehicle interior, but the seal wall of the pillar side part In some cases, an automobile body/door structure is adopted in which the seal wall on the roof side part is deflected in the vertical direction of the vehicle while the seal wall is deflected in the outward and outward directions of the vehicle interior. In such a case, it is conceivable to obtain sealing performance by bringing the pillar-side seal wall and the roof-side seal wall into elastic contact with the vehicle body, as in the case of the seal material in Patent Document 1. Assuming that high water pressure is applied from the outside, as in the case of a car, there is a risk that depending on the water pressure, water will run up from the pillar side and enter the interior of the vehicle, making the sealing performance unsatisfactory.

It is conceivable to further improve sealing performance by providing seal lips on each of the pillar side portion and the roof side portion and bringing these seal lips into elastic contact with the vehicle body, as in the sealing material of Patent Document 2.

However, as mentioned above, the pillar-side and roof-side parts of the seal material undergo different deformations when the door is closed, so the seal lip on the pillar-side part and the seal lip on the roof-side part are continuous. Therefore, it is necessary to place them apart from each other in the direction of the interior and exterior of the vehicle.

This creates a waterway between the seal lip on the pillar side part and the seal lip on the roof side part, so Patent Document 2 provides a waterway blocking wall that connects the seal lip on the pillar side part and the seal lip on the roof side part. is forming.

However, the waterway blocking wall as shown in Patent Document 2 is connected and integrated with both the seal lip of the roof side portion located inside the vehicle interior and the seal lip of the pillar side portion located outside the vehicle interior. Because of this, when the door is closed, the pressing force that the seal lip on the roof side receives from the door is directly transmitted to the seal lip on the pillar side through the waterway blocking wall, and the upper end of the seal lip on the pillar side This causes abnormal flexure such as the part being pushed out to the outside of the vehicle interior or conversely being pulled into the interior of the vehicle, resulting in a gap between the part and the outside of the vehicle body, resulting in poor appearance and damage to the seal. It may lead to sexual deterioration.

In addition, when trying to apply a structure in which the protrusion length is varied by variable extrusion molding in order to prevent the occurrence of rain dripping, as in the sealing material of Patent Document 3, as in Patent Document 3, If the corner portion is gentle and the change in the direction of deflection of the hollow seal portion is small, such a structure will not pose any particular problem.

However, as mentioned above, the pillar-side and roof-side parts of the seal material undergo different deformations when the door is closed, so the seal lip on the pillar-side part and the seal lip on the roof-side part are continuous. Therefore, it is necessary to place them apart from each other in the direction of the interior and exterior of the vehicle.

This creates a gap between the seal lip on the pillar side and the seal lip on the roof side, allowing water to enter the contact area between the car body opening edge and the hollow seal (the so-called triangular gap) at the corner. However, it is not possible to prevent the occurrence of raindrops.

The present invention has been made in view of this point, and its purpose is to improve sealing performance without deteriorating the external appearance.

To achieve the above object, a first invention provides an automobile door that is attached to a window frame of an automobile door over a frame upper side portion and a frame vertical side portion extending downward from a longitudinal end of the frame upper side portion. In the sealing material for automobile doors, the sealing material for automobile doors includes a roof side portion extending in the longitudinal direction of the vehicle along the upper side of the frame, and a pillar side portion extending in the vertical direction along the longitudinal side of the frame, The roof side portion is integrally formed with a roof side base attached to the upper side of the frame and the roof side base, and when the automobile door is closed, the roof side portion is pressed downward from the roof of the vehicle body and deformed, and elastically presses against the roof. The pillar side portion has a roof side seal wall in contact with the vehicle door, and the pillar side portion is integrally formed with a pillar side base attached to the longitudinal side of the frame and the pillar side base, and when the vehicle door is closed, a pillar-side seal wall that comes into elastic contact with the pillar in a deformed state when being pressed toward the outdoor side, and a roof-side seal lip that comes into elastic contact with the roof when the automobile door is closed on the outer surface of the roof-side seal wall. is formed so as to protrude outward from the roof side seal wall and extend continuously in the longitudinal direction of the vehicle until reaching the outer surface of the upper end of the pillar side seal wall, and the outer surface of the pillar side seal wall has a A pillar-side seal lip that comes into elastic contact with the pillar when the door is closed is formed to protrude outward from the pillar-side seal wall and extend continuously in the vertical direction until reaching the outer surface of the roof-side seal wall, and The pillar side of the seal lip and the roof side of the pillar-side seal lip are provided in a range that overlaps with each other when viewed from the outside and outside of the vehicle interior, and are arranged so that they do not touch each other when the vehicle door is opened. They are arranged at intervals in the outward direction, and when the automobile door is closed, the pillar side of the roof-side sealing lip comes into contact with the roof side of the pillar-side sealing lip.

According to this configuration, when the automobile door is closed, the roof-side seal wall and the roof-side seal lip come into elastic contact with the roof, and the pillar-side seal wall and the pillar-side seal lip come into elastic contact with the pillar. The roof-side seal wall is deformed by being pressed downward from the roof, while the pillar-side seal wall is deformed by being pressed from the pillar toward the outside of the vehicle interior, so the roof-side seal wall and the pillar-side seal wall are deformed differently. . At this time, the roof-side seal lip provided on the roof-side seal wall and the pillar-side seal lip provided on the pillar-side seal wall are moved toward the outside of the vehicle interior so that they do not touch each other when the automobile door is opened. Since they are spaced apart, the roof side seal lip and the pillar side seal lip can be deformed or displaced to correspond to different deformations between the roof side seal wall and the pillar side seal wall, and the seal Improves sex.

Furthermore, the pillar side of the roof-side seal lip and the roof side of the pillar-side seal lip are spaced apart in the direction from the outside of the vehicle interior so that they do not touch each other when the car door is opened. Even if they touch each other when closed, they will not be pushed out or pulled in. This makes it difficult for a gap to form between the roof-side seal lip and the outer surface of the vehicle body, resulting in a good external appearance.

Furthermore, when the automobile door is closed, the pillar side of the roof side seal lip is in contact with the roof side of the pillar side seal lip, so that from between the pillar side of the roof side seal lip and the roof side of the pillar side seal lip, water intrusion is suppressed.

Further , the pillar-side seal lip is arranged closer to the vehicle interior than the roof-side seal lip, and the pillar side of the roof-side seal lip is curved so as to be located closer to the vehicle interior as it approaches the end thereof. It is characterized by the presence of

That is, when high water pressure is applied from the outside, water may flow upward along the pillar-side seal lip. In this case, the closer the pillar side of the roof side seal lip is to its end, the more it is curved so that it is located inward of the vehicle interior, and when the car door is closed, it comes into contact with the pillar side seal lip. This prevents water running up from entering the interior of the vehicle.

In addition, even if a so-called triangular gap occurs at the part of the seal wall that makes elastic contact with the car body from the roof to the pillar, the seal lip can be continuously applied to the outside part of the triangular gap, so the triangular gap can be Water will not enter and accumulate in the area, and as a result, the occurrence of raindrops can be prevented.

A second invention is characterized in that, when the automobile door is closed, the pillar-side end of the roof-side seal lip comes into contact with the exterior surface of the pillar-side seal lip.

According to this configuration, when the automobile door is closed, the pillar-side end of the roof-side seal lip touches the exterior surface of the vehicle interior of the pillar-side seal lip, so that the roof-side seal lip and the pillar-side seal lip are in contact with each other. The sealing performance between the parts is further improved.

A third invention is characterized in that the amount of protrusion from the roof-side seal wall on the pillar side of the roof-side seal lip decreases as it approaches the end thereof.

According to this configuration, when the automobile door is closed, the pillar-side end of the roof-side seal lip can be brought into contact with the exterior surface of the vehicle interior, so that the pillar-side end of the roof-side seal lip does not get tensed. The sealing performance with the pillar side seal lip is further improved.

A fourth invention is characterized in that the roof-side seal lip protrudes upward from the roof-side seal wall and is inclined so that the closer it gets to the upper end, the more it is located on the outside of the vehicle interior.

According to this configuration, when the roof comes into contact with the roof-side seal lip from the inside of the vehicle when the automobile door is closed, the roof-side seal lip is deformed so as to reliably fall down and comes into elastic contact with the roof.

According to the present invention, the pillar side of the roof side seal lip and the roof side of the pillar side seal lip are arranged at intervals in the direction of the exterior and exterior of the vehicle interior so that they do not touch each other when the door is opened, and the roof side seal The pillar side of the lip is formed so that the closer it gets to the end, the closer it gets to the roof side of the pillar side seal lip, and it comes into contact with the roof side of the pillar side seal lip when the door is closed, so the exterior appearance is not deteriorated. Sealing performance can be improved.

FIG. 1 is a left side view of an automobile equipped with an automobile door sealing material according to an embodiment of the present invention. FIG. 3 is a side view of the left front door sealing material seen from outside the vehicle interior. FIG. 3 is a view of the rear upper part of the left front door sealing material as seen from the inside of the vehicle. 4 is a cross-sectional view corresponding to the cross-sectional view taken along the line IV-IV in FIG. 3, showing a state of attachment to the front door. FIG. It is a view corresponding to FIG. 4A when the front door is closed. 4 is a cross-sectional view corresponding to the cross-sectional view taken along the line V-V in FIG. 3, showing a state of attachment to the front door. FIG. It is a view corresponding to FIG. 5A when the front door is closed. 4 is a cross-sectional view corresponding to the cross-sectional view taken along the line VI-VI in FIG. 3, showing a state in which it is attached to a front door. It is a view corresponding to FIG. 6A when the front door is closed. FIG. 4 is a sectional view corresponding to the sectional view taken along the line VII-VII in FIG. 3, and shows a state of attachment to the front door. It is a view corresponding to FIG. 7A when the front door is closed. FIG. 4 is a sectional view corresponding to the VIII-VIII line sectional view in FIG. 3, showing a state of attachment to the front door. It is a view corresponding to FIG. 8A when the front door is closed.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Note that the following description of preferred embodiments is essentially just an example, and is not intended to limit the present invention, its applications, or its uses.

FIG. 1 is a left side view of an automobile 100 equipped with an automobile door sealing material according to an embodiment of the present invention. A front door 110 and a rear door 210 are attached to the left and right sides of the automobile 100 so as to be openable and closable. The front door 110 includes a door body 111, a front door glass 112, and a wind frame 113 that functions as a sash that holds the front door glass 112. The door body portion 111 of the front door 110 is attached to a front pillar (not shown) of the vehicle body via a hinge (not shown) configured to be rotatable around a rotation axis extending in the vertical direction. There is. Further, like the front door 110, the rear door 210 also includes a door main body 211, a rear door glass 212, and a wind frame 213 that functions as a sash that holds the rear door glass 212. (not shown) via a hinge (not shown) that is configured to be rotatable around a rotation axis extending in the vertical direction.

In the description of this embodiment, the front side of the vehicle is simply referred to as the front, and the rear side of the vehicle is simply referred to as the rear. Furthermore, the outside in the vehicle width direction is referred to as the outside of the vehicle interior, and the inside in the vehicle width direction is referred to as the interior of the vehicle interior.

The wind frame 113 of the front door 110 includes a frame front vertical side 113a extending upward and rearward from the upper front end of the door main body 111, and a frame extending rearward from the upper end of the frame front vertical side 113a. It has an upper side portion 113b and a frame rear vertical side portion 113c extending downward from the rear end (longitudinal end) of the frame upper side 113b to the upper rear end of the door main body 111.

The window frame 213 of the rear door 210 includes a frame front vertical side part 213a extending upward from the upper front end of the door main body part 211, and a frame upper side part 213b extending rearward from the upper end of the frame front vertical side part 213a. , and a frame rear side vertical side portion 213c extending downward from the rear end portion (longitudinal end portion) of the frame upper side portion 213b to the upper rear end portion of the door main body portion 211. A sealing material (not shown) is attached to this rear door 210 as well as the front door 110.

(Overall composition of front door sealing material)
FIG. 2 is a diagram of the left front door sealing material 1 viewed from outside the vehicle interior. The left front door sealing material 1 is formed into an annular shape to correspond to the outer shape of the left front door 110, and includes an upper extruded portion 1A extending in the front-rear direction along the upper frame portion 113b, and a rear side of the frame. A rear vertical side extrusion part 1C that extends in the vertical direction along the vertical side part 113c and extends to the vicinity of the lower end of the door main body part 111, and a lower side extruded part 1D that extends in the front-rear direction along the lower end of the door main body part 111. , and a front longitudinal side extrusion portion 1E extending in the vertical direction along the front end portion of the door body portion 111. These upper edge extruded portion 1A, rear longitudinal edge extruded portion 1C, lower edge extruded portion 1D, and front longitudinal edge extruded portion 1E are formed by an extrusion molding method in which an elastic material is extruded from a die (not shown). These are extruded parts, each having the same cross-sectional shape across both ends in the longitudinal direction.

Further, the left front door sealing material 1 has a front mold part 1F provided between the front end of the upper side extrusion part 1A and the upper end of the front vertical side extrusion part 1E, and a rear end of the upper side extrusion part 1A. and a rear side mold part 1H provided between the upper end part of the rear longitudinal side extrusion part 1C.

The front door sealing material 1 is attached to the wind frame 113 and the door body 111 at multiple locations spaced apart in the longitudinal direction. Examples of attachment means for the front door sealing material 1 include clips and double-sided tape, but are not limited to these, and various attachment means can be used. In this example, the rear mold part 1H is attached to the frame upper side part 113b and the frame vertical side part 113c, and the upper side extrusion part 1A is attached to the frame upper side part 113b. Further, the rear longitudinal side extrusion portion 1C is attached to the frame rear longitudinal side portion 113c, and the lower side extrusion portion 1D is attached to the lower end portion of the door main body portion 111.

The boundary line between the front vertical edge extrusion part 1E and the front mold part 1F is indicated by the symbol L1, and the boundary line between the upper edge extrusion part 1A and the front mold part 1F is indicated by the symbol L2. The boundary line between the rear longitudinal edge extrusion part 1C and the rear mold part 1H is indicated by the symbol L3. The boundary line between the upper side extrusion part 1A and the rear mold part 1H is indicated by the symbol L4.

The front side mold part 1F and the rear side mold part 1H are parts molded with a mold (not shown) that can be opened and closed, and are therefore mold parts. The front side mold part 1F is formed by injecting an elastic material into the cavity of the mold while holding the front end of the upper side extrusion part 1A and the upper end of the front vertical side extrusion part 1E with a mold. It is integrally molded with the front end portion of 1A and the upper end portion of the front vertical side extruded portion 1E. The rear side mold part 1H is formed by injecting an elastic material into the cavity of the mold while holding the rear end of the upper side extrusion part 1A and the upper end of the rear longitudinal side extrusion part 1C with a mold. It is integrally molded with the upper side extruded part 1A and the rear vertical side extruded part 1C.

In addition, the material to which the front door sealing material 1 can be applied is not particularly limited as long as it is a rubber-like elastic material, but in the case of rubber, EPDM sponge rubber is used, and in the case of thermoplastic resin, foamed TPO or soft TPO is used. preferable.

(Detailed configuration of left front door sealing material 1)
Hereinafter, a case will be described in which the present invention is applied to the rear mold part 1H of the left front door sealing material 1. However, the present invention is not limited to application to this part, and for example, the rear door seal It can also be applied to the front upper part of a material (not shown).

(Configuration of rear longitudinal side extrusion part 1C)
First, the structure of the rear longitudinal edge extrusion portion 1C will be described based on FIGS. 2, 3, 4A, and 4B. 4A and 4B are cross-sectional views taken along the line IV-IV in FIG. 3, and show the state in which it is attached to the front door 110. As shown in FIG. 2, the rear longitudinal side extrusion part 1C extends linearly in the vertical direction, and as shown in FIG. connected to the section.

As shown in FIG. 4A, the rear vertical side extrusion section 1C includes a vertical side base 10 and a vertical side seal wall 11. The vertical side base 10 extends along the frame rear vertical side 113c and is fixed to the frame rear vertical side 113c. An extending plate portion 113d extending toward the rear side is provided on the outside of the vehicle interior of the rear vertical side portion 113c of the frame. A garnish 113e is attached to the outside of the passenger compartment of the extending plate portion 113d.

The vertical side seal wall 11 is a portion that bulges out from the vertical side base 10 toward the rear and toward the inside of the vehicle interior. In FIG. 4A, the front door 110 is shown in an open state, and the vertical seal wall 11 is not in elastic contact with the vehicle body. The inside of the vertical side base 10 is formed hollow and has a cavity 10a. Further, the cavity formed by the vertical side seal wall 11 and the cavity 10a of the vertical side base 10 are partitioned by a partition wall 10b provided at the rear portion of the vertical side base 10.

As shown in FIG. 4B, when the front door 110 is closed, the vertical seal wall 11 comes into elastic contact with the center pillar P of the vehicle body. The center pillar P has a front plate P1 extending in the direction outside the vehicle interior, and an outer plate P2 extending rearward from the end of the front plate P1 on the outside of the vehicle interior. A step P3 recessed toward the interior of the vehicle is formed in the front portion of the outer plate P2. When the front door 110 is closed, the vertical side seal wall 11 of the rear vertical side extruded portion 1C comes into elastic contact with the portion of the outer plate P2 on the front side of the step P3 from the inside of the vehicle interior. As a result, the vertical side seal wall 11 is pressed and deformed toward the outside of the vehicle interior, and the distal end side of the vertical side seal wall 11 in the bulging direction is deformed to move toward the outside of the vehicle interior and comes into elastic contact with the center pillar P.

(Configuration of upper side extrusion part 1A)
Next, the structure of the upper side extrusion portion 1A will be described based on FIGS. 2, 3, 5A, and 5B. 5A and 5B are cross-sectional views taken along the line VV in FIG. 3, and show the state in which it is attached to the front door 110. As shown in FIG. 2, the upper side extrusion part 1A extends in the front-rear direction and is gently curved as a whole so as to be positioned lower as it approaches the front side along the shape of the frame upper side part 113b. As shown, the rear end of the upper side extrusion part 1A is connected to the front end of the rear mold part 1H.

As shown in FIG. 5A, the upper side extrusion section 1A includes an upper side base 20 and an upper side seal wall 21. The upper side base 20 extends in the front-rear direction along the frame upper side 113b, and is fixed to the frame upper side 113b. A protruding plate portion 113f that protrudes upward and extends in the front-rear direction is provided on the outside of the vehicle interior of the frame upper side portion 113b. A molding 113g is attached to the outside of the vehicle interior of the projecting plate portion 113f.

The inside of the upper side base 20 is formed hollow and has a cavity 20a. An outer seal lip 22 that protrudes upward and extends in the front-rear direction is provided on the upper surface of the upper base 20.

The upper side seal wall 21 is integrally molded on the interior side of the upper side base 20, and is a portion that bulges toward the interior side of the vehicle interior. In FIG. 5A, the front door 110 is shown in an open state, and the upper seal wall 21 is not in elastic contact with the vehicle body. Further, the cavity formed by the upper seal wall 21 and the cavity 20a of the upper base 20 are separated by a partition wall 20b provided on the interior side portion of the upper base 20.

Further, an inner seal lip 23 that projects upward and extends in the front-rear direction is provided at a portion of the upper surface of the upper seal wall 21 closer to the outside of the vehicle interior. The inner seal lip 23 is disposed away from the outer seal lip 22 toward the interior of the vehicle interior, and is inclined so that the closer it is to the upper end, the closer it is to the outside of the vehicle interior. Further, the thickness of the inner seal lip 23 is set to be thinner than the thickness of the outer seal lip 22. Furthermore, the vertical dimension of the inner seal lip 23 is set shorter than the vertical dimension of the outer seal lip 22.

As shown in FIG. 5B, when the front door 110 is closed, the upper seal wall 21 comes into elastic contact with the roof R of the vehicle body. The roof R has an inner plate R1 extending in the direction of the interior and exterior of the vehicle interior, and an inner plate R2 extending downward from an end portion of the inner plate R1 on the interior side of the vehicle interior. A step R3 is formed on the outer side of the vehicle interior of the inner plate R1. Furthermore, it has an outer plate R4 extending from the end of the step R3 to the outside of the vehicle interior, and an outer plate R5 extending upward from the end of the outer plate R4.

When the front door 110 is closed, the inner plate R1 and the outer plate R4 are configured to be in a substantially parallel positional relationship with respect to the sealing material 1 attachment surface of the frame upper side portion 113b. When the front door 110 is closed, the upper side sealing wall 21 of the upper side extrusion portion 1A comes into elastic contact with the vehicle exterior side portion of the inner plate R1 from below. As a result, the upper side seal wall 21 is pressed downward and deformed so as to be crushed between the outer plate R1 and the frame upper side 113b, and comes into elastic contact with the outer plate R1 and the frame upper side 113b.

Further, when the front door 110 is closed, the outer seal lip 22 and the inner seal lip 23 come into elastic contact with the interior side portion and the exterior side portion of the outer plate R4 from diagonally downward, respectively. As a result, the outer seal lip 22 and the inner seal lip 23 are pressed downward and flexibly deformed, and come into elastic contact with the outer plate R4. This results in a multiple seal structure.

(Configuration of rear mold part 1H)
As shown in FIG. 3, the rear mold portion 1H is formed to correspond to a connection portion where the frame upper side portion 113b of the wind frame 113 and the frame rear vertical side portion 113c are connected. Specifically, the rear mold portion 1H includes a roof side portion 30 extending in the front-rear direction along the frame upper side portion 113b, and a pillar side portion 40 extending in the vertical direction along the frame vertical side portion 113c. . In this embodiment, the length of the roof side portion 30 is shorter than the length of the pillar side portion 40, but the present invention is not limited to this, and the length of the roof side portion 30 is longer than the length of the pillar side portion 40. Alternatively, the length of the roof side portion 30 and the length of the pillar side portion 40 may be the same.

The rear mold part 1H also includes a fixing plate 50 fixed to the wind frame 113. The fixed plate 50 extends rearward from the boundary between the roof side portion 30 and the pillar side portion 40 and the vicinity thereof. An insertion hole 50a is formed in the vertically intermediate portion of the fixing plate 50, into which a clip or the like (not shown) for fixing the fixing plate 50 to the wind frame 113 is inserted. As shown in FIGS. 6A and 6B, an insert 51 made of a hard resin material or the like is embedded inside the fixed plate 50, thereby increasing the rigidity of the fixed plate 50. An outsert (not shown) may be provided instead of the insert 51.

The pillar side portion 40 is integrally molded with a pillar side base 41 attached to the frame vertical side portion 113c, and is deformed by being pressed from the pillar P toward the outside of the vehicle interior when the front door 110 is closed. It has a pillar-side seal wall 42 that comes into elastic contact with the pillar P. The pillar side base portion 41 extends along the frame vertical side portion 113c and has a notch portion 41a that extends in the vertical direction. The cut portion 41a is for removing a core (not shown) used when forming the pillar side seal wall 42. The lower end of the pillar side base 41 is connected to the upper end of the vertical side base 10 (shown in FIG. 4A) of the rear vertical side extruded portion 1C.

The pillar-side seal wall 42 bulges out from the pillar-side base 41 toward the interior of the vehicle. The lower end of the pillar side seal wall 42 is connected to the upper end of the vertical side seal wall 11 (shown in FIG. 4A) of the rear vertical side extruded portion 1C. A pillar-side seal lip 43 that comes into elastic contact with the pillar P when the front door 110 is closed is formed on the outer surface of the pillar-side seal wall 42 . The pillar-side seal lip 43 is arranged on the passenger compartment side of the pillar-side seal wall 42.

The pillar-side seal lip 43 projects outward from the pillar-side seal wall 42 and extends continuously in the vertical direction. The pillar-side seal lip 43 may protrude in the rear direction or toward the passenger compartment side. As shown in FIG. 3, the lower side of the pillar-side seal lip 43 extends until it reaches the vicinity of the rear longitudinal side extrusion portion 1C. The lower protrusion height of the pillar-side seal lip 43 is set to become lower as it approaches the lower end.

Further, the roof side, which is the upper part of the pillar-side seal lip 43, extends until it reaches the outer surface of the roof-side seal wall 32, which will be described later, or the upper surface of the rear mold part 1H. The height of the roof-side protrusion of the pillar-side seal lip 43 is set to decrease as it approaches its end.

As shown in FIG. 6B, when the front door 110 is closed, the pillar-side seal wall 42 comes into elastic contact with the step P3 of the center pillar P from the outside of the vehicle interior. As a result, the pillar-side seal wall 42 is pressed and deformed to the outside of the vehicle interior, and the tip end side of the pillar-side seal wall 42 in the bulging direction is deformed to move toward the outside of the vehicle interior and comes into elastic contact with the center pillar P. In addition, the pillar-side seal lip 43 also comes into elastic contact with the step P3 and deforms so as to fall toward the outside of the vehicle interior.

As shown in FIG. 7A, the roof side portion 30 is integrally formed with a roof side base 31 attached to the frame upper side 113b, and is pressed downward from the roof R when the front door 110 is closed. It has a roof-side seal wall 32 that comes into elastic contact with the roof R in a deformed state. The roof side base portion 31 extends in the front-rear direction along the frame upper side portion 113b. The roof side base portion 31 has a notch portion 31a extending in the front-rear direction. The notch 31a is continuous with the notch 41a of the pillar side portion 40, and is for removing a core (not shown) used when forming the roof side seal wall 32. The front end portion of the roof side base portion 31 is connected to the rear end portion of the upper side base portion 20 (shown in FIG. 5A) of the upper side extrusion portion 1A.

The roof-side seal wall 32 bulges out from the roof-side base 31 toward the interior of the vehicle. The front end of the roof-side seal wall 32 is connected to the rear end of the upper seal wall 21 (shown in FIG. 5A) of the upper extrusion portion 1A. An outer seal lip 33 that comes into elastic contact with the roof R when the front door 110 is closed is formed on the outer surface of the roof-side seal wall 32. The outer seal lip 33 projects upward and extends in the front-rear direction. The front end of the outer seal lip 33 is connected to the rear end of the outer seal lip 22 (shown in FIG. 5A) of the upper extruded portion 1A. As shown in FIG. 3, the rear end of the outer seal lip 33 extends continuously to the top of the fixing plate 50. As shown in FIG.

As shown in FIG. 7A, a roof-side seal lip 34 is formed on the outer surface of the roof-side seal wall 32 and comes into elastic contact with the roof R when the front door 110 is closed. The roof-side seal lip 34 is arranged on the outside of the vehicle interior of the roof-side seal wall 32.

The roof-side seal lip 34 projects outward from the roof-side seal wall 32 and extends continuously in the front-rear direction. The protruding direction of the roof-side seal lip 34 is upward, and the closer it is to the upper end, the more it is inclined toward the outside of the vehicle interior. The front end of the roof-side seal lip 34 is connected to the rear end of the inner seal lip 23 (shown in FIG. 5A) of the upper extruded portion 1A.

Further, as shown in FIG. 3 , the rear portion of the roof-side seal lip 34 on the pillar side extends until it reaches the outer surface of the pillar-side seal wall 42 . The height of the pillar-side protrusion of the roof-side seal lip 34 is set to decrease as it approaches its end.

The pillar side of the roof-side seal lip 34 and the roof side of the pillar-side seal lip 43 are provided in a range that overlaps with each other when viewed from the interior and exterior directions of the vehicle interior. Furthermore, as shown in FIG. 8A, when the front door 110 is opened, the pillar side (the rear end portion) of the roof side seal lip 34 and the roof side of the pillar side seal lip 43 are They are spaced apart in the direction of the interior and exterior of the vehicle so that they do not touch each other. At this time, the pillar-side seal lip 43 is arranged closer to the vehicle interior than the roof-side seal lip 34.

As shown in FIG. 3, the pillar side of the roof side seal lip 34 is formed so that the closer it gets to the end, the closer the pillar side seal lip 43 is to the roof side. Specifically, the pillar side of the roof-side seal lip 34 is curved so that the closer it gets to the rear end, the closer it is to the inside of the vehicle. On the pillar side of the roof-side seal lip 34, the amount of protrusion from the roof-side seal wall 32 decreases as it approaches the rear end.

As shown in FIG. 8B, when the front door 110 is closed, the roof side seal wall 32 comes into elastic contact with the inner plate R1 of the roof R from below. As a result, the roof-side seal wall 32 is pressed downward, deforms, and comes into elastic contact with the inner plate R1 of the roof R. In addition, the pillar-side seal lip 43 comes into elastic contact with the inner plate R1 and the inclined plate R3 and is deformed so as to fall toward the outside of the vehicle interior.

On the other hand, when the front door 110 is closed, the pillar side of the roof side seal lip 34 is deformed so as to fall down toward the outside of the vehicle interior, but the amount of deformation is smaller than the amount of deformation of the pillar side seal lip 43 on the roof side. ing.

The reason is that
(1) The pillar side of the roof side seal lip 34 is set so that the amount of protrusion from the roof side seal wall 32 decreases as it approaches the rear end. (2) The pillar side of the roof side seal lip 34 is The lip shape (both the tip and the base) is set to curve toward the interior of the vehicle as it approaches the rear end (that is, in the direction in which the roof-side seal wall 32 is bent and deformed in the direction of the exterior and exterior of the vehicle interior). This is because they are not parallel to each other, but have an acute angle.

From the above two points, it can be pointed out that the roof side seal lip 34 on the pillar side has higher lip rigidity than the pillar side seal lip 43 on the roof side. For this reason, when the front door 110 is closed, a portion 32a of the roof side seal wall 32 from the root T1 of the roof side seal lip 34 to the root T2 to the roof side base is curved upward, and the pillar side seal The portion 32b between the roof-side root T3 of the lip 43 and the pillar-side root T1 of the roof-side seal lip 34 is curved downward, and as a result (when the front door 110 is closed) the roof-side seal lip The pillar side of 34 contacts the roof side of the pillar side seal lip 43. This can be achieved by setting the amount of protrusion of the roof-side seal lip 34 from the roof-side seal wall 32, and by setting the distance between the roof-side seal lip 34 and the pillar-side seal lip 43 in the vehicle interior/outside direction.

In this embodiment, since the pillar side of the roof side seal lip 34 is curved so as to approach the pillar side seal lip 43, when the front door 110 is opened, the pillar side end of the roof side seal lip 34 is bent toward the pillar side. It is arranged so as to face the outer surface of the passenger compartment of the seal lip 34. When the front door 110 is closed from this state, the pillar-side end of the roof-side seal lip 34 comes into contact with the exterior surface of the vehicle interior of the pillar-side seal lip 43. As a result, there is almost no gap between the pillar-side end of the roof-side seal lip 34 and the pillar-side seal lip 43, and water intrusion is suppressed.

(Operations and effects of embodiments)
As explained above, when the front door 110 is closed, the roof-side seal wall 32 and the roof-side seal lip 34 come into elastic contact with the roof R as shown in FIG. 7B, and the pillar-side seal wall 42 comes into contact with the roof R as shown in FIG. 6B. And the pillar-side seal lip 43 comes into elastic contact with the pillar P. The roof-side seal wall 32 is pressed downward from the roof R and deforms, while the pillar-side seal wall 42 is pressed from the pillar P toward the outside of the vehicle interior and deforms, so that the roof-side seal wall 32 and the pillar-side seal wall 42 are have different deformations.

At this time, the roof-side seal lip 34 provided on the roof-side seal wall 32 and the pillar-side seal lip 43 provided on the pillar-side seal wall 42 are arranged so that they do not touch each other when the front door 110 is closed. Since they are arranged at intervals in the indoor-outdoor direction, the roof-side seal lip 34 and the pillar-side seal lip 43 can be deformed or deformed to correspond to different deformations of the roof-side seal wall 32 and the pillar-side seal wall 42. It becomes possible to displace it, and the sealing performance improves.

Furthermore, the pillar side of the roof-side seal lip 34 and the roof side of the pillar-side seal lip 43 are spaced apart from each other in the direction outside and inside the vehicle interior so that they do not touch each other when the front door 110 is closed. Even if they come into contact when 110 is closed, they will not be pushed out or pulled in. This makes it difficult for a gap to form between the roof-side seal lip 34 and the outer surface of the vehicle body, resulting in a good external appearance.

Furthermore, when the front door 110 is closed, the pillar side of the roof side seal lip 34 is in contact with the roof side of the pillar side seal lip 43, so that the pillar side of the roof side seal lip 34 and the roof side of the pillar side seal lip 43 are in contact with each other. Water intrusion from between the parts is suppressed.

The embodiments described above are merely illustrative in all respects and should not be interpreted in a limiting manner. Furthermore, all modifications and changes that come within the scope of equivalents of the claims are intended to be within the scope of the present invention.

As described above, the automobile door sealing material according to the present invention can be used, for example, to seal between a door attached to the side of an automobile and a vehicle body.

1 Sealing material for front doors (sealing material for automobile doors)
1H Rear side mold part 30 Roof side part 31 Roof side base 32 Roof side seal wall 34 Roof side seal lip 40 Pillar side part 41 Pillar side base 42 Pillar side seal wall 43 Pillar side seal lip 110 Front door 113 Wind frame 113a Frame front side Vertical side portion 113b Frame top side portion 113c Frame rear vertical side portion

Claims (4)

A sealing material for an automobile door that is attached to the upper side of the window frame of an automobile door and the vertical side of the frame extending downward from the longitudinal end of the upper side of the frame,
The automobile door sealing material includes a roof side portion extending in the longitudinal direction of the vehicle along the upper side of the frame, and a pillar side portion extending in the vertical direction along the vertical side of the frame,
The roof side portion is integrally formed with a roof side base attached to the upper side of the frame and the roof side base, and is pressed downwardly from the roof of the vehicle body when the automobile door is closed, and is deformed and attached to the roof. It has a roof side seal wall that comes into elastic contact with the roof side seal wall,
The pillar side portion is integrally formed with a pillar side base attached to the longitudinal side of the frame and the pillar side base, and is deformed by being pressed from the pillar of the vehicle body toward the outside of the vehicle interior when the vehicle door is closed. a pillar-side seal wall that comes into elastic contact with the pillar;
On the outer surface of the roof-side seal wall, a roof-side seal lip that comes into elastic contact with the roof when the automobile door is closed projects outwardly from the roof-side seal wall and continues in the longitudinal direction of the vehicle with the pillar-side seal wall. is formed to extend until it reaches the outer surface of the upper end of the
On the outer surface of the pillar-side seal wall, a pillar-side seal lip that comes into elastic contact with the pillar when the automobile door is closed protrudes outward from the pillar-side seal wall and is continuous in the vertical direction of the roof-side seal wall. formed to extend to the outer surface,
The pillar-side seal lip is arranged closer to the vehicle interior than the roof-side seal lip,
The pillar side of the roof side seal lip is curved so as to be located closer to the interior of the vehicle as it approaches the end thereof,
The pillar side of the roof-side seal lip and the roof side of the pillar-side seal lip are provided in a range that overlaps with each other when viewed from the interior and exterior directions of the vehicle interior, and so as not to touch each other when the automobile door is opened. A sealing material for an automobile door, wherein the sealing material is arranged at intervals in an outward and outward direction of a vehicle interior, and the pillar side of the roof-side sealing lip comes into contact with the roof side of the pillar-side sealing lip when the automobile door is closed. . The automobile door sealing material according to claim 1 ,
A sealing material for an automobile door, characterized in that, when the automobile door is closed, a pillar-side end of the roof-side seal lip comes into contact with an exterior surface of the pillar-side seal lip. The automobile door sealing material according to claim 1 or 2 ,
A sealing material for an automobile door, wherein the pillar side of the roof-side seal lip protrudes less from the roof-side seal wall as it approaches the end thereof. The sealing material for an automobile door according to any one of claims 1 to 3 ,
The sealing material for an automobile door, wherein the roof-side seal lip projects upward from the roof-side seal wall and is inclined so that the closer it gets to the upper end, the more it is located on the outside of the vehicle interior.

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